Mounting for yarn packages



Oct, 3, 1950 H. F. Lu-:DTKE

MOUNTING FOR YARN PACKAGES Filed March 14. 1945 2 Sheets-Sheet 1 Oct.`3, 1950 H. F. LIEDTKE MOUNTING FOR YARN PACKAGES 2 Sheets-Sheet 2 Filed March 14, 1945 E HH 0 i .2f V/w l i@ m4 s L, j@

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Patented Oct. 3, 1950 MOUNTING FOR YARN PACKAGES Hugo F. Liedtke, Philadelphia, Pa., assignor to Smith, Drum and Company, Philadelphia, Pa., a corporation of Pennsylvania Application March 14, 1945, Serial No. 582,689

The present invention relates to yarn packages and more particularly to themounting of such packages upon vthe spindles of a carrier for use in yarn driers, dyeing machines and other treating equipment wherein the parts Vare subjected to a heated medium.

In package treating apparatus of the type having metal spindles for respectively entering the perforated tubes (upon which the yarn is wound as a package) to hold the packages in place during the circulation of dye, air or other medium through the packages, the high temperature of the treating medium causes the spindles to expand endwise relative to the tubes whichv are nonmetallic. Since each spindle is provided with a closure to seat over the end of the tube as a seal, this expansion unseats the closure and causes leakage of the medium thereby, not only prolonging the particular treating step, but in the case of a dyeing operation causing spotty and uneven dyeing. The mentioned closures have been threaded heretofore upon the spindles and when the carrier of the packages is accessible, as when subjected to the circulation of hot air, the operator is obliged to be continually tightening the closures against the tube ends, reaching successively from spindle to spindle in a tiresome and endless operation, because each package carrier usually mounts a large number of such spindles. Where the carrier is of the type having downwardly disposed spindles as well as upwardly disposed spindles, that two groups of spindles separated by a transfer header, the operator must lie on the floor, twist his body in unnatural positions, and stretch his arms under the carrier Y ing leakage of dye liquor when the spindle carrier is in a dye vat; and to provide other iml provernents as will hereinafter appear.

to reach and tighten the closures displaced by always present, results in by-passing an appreciable quantity of dye liquor out the ends of the tubes instead of through the yarn packages. This problem has not been solved heretofore.

Some of the objects of the present invention are: to provide an improved means for holding a yarn package on a spindle of a treating machine; to provide means for holdingra yarn package on a spindle in leak-proof relation regardless of expansion of the spindle due to heat of the treating medium; to provide means for automatically maintaining a sealing relation between the spindle of a yarn package and the yarn package tube which encircles the spindle; to provide a sealing device functioning to prevent treating liquid within the perforated tube of a yarn In the accompanying drawings, Fig. 1 represents a fragmentary sectional elevation of a yarn package carrier showing an upstanding spindle for receiving packages and a downwardly disposed spindle mounting two yarn packages equipped with sealing devices embodying one form of the invention; Fig. 2 represents a fragmentary sectional elevation of the upper end of a yarn package mounted on the spindle of a package carrier and showing a sealing device embodying the invention; Fig. 3 represents a like view showing a modied form of the invention; Fig., 4 represents a section on line 4 4 of Fig. 3; Fig. 5 represents a fragmental axial section showing a sealing device of the inventon Vas disposed between two superposed vyarn packages;eFig. 6 represents a section on line 6--6 of Fig. 5; Fig. 7 represents a fragmentary sectional elevation of an end of a yarn package mounted upon a Spindle and showing another modified form of the invention; Fig. 8 represents a section on line 8 8 of Fig. 7; Fig. 9 represents a fragmental axial section showing a modification of the sealing device as disf posed between two axially alined yarn packages; v Fig. 10 represents a section on line III-I 0 of Fig.

9; Fig. 11 represents a section similar to Fig. 9 but showing another form of compensating spacer.

Referring 4to the drawings, one form of the present invention is shown as applied to the metal spindle I0 of a package carrier II, the latter, for example, being of the type having a central circulating pipe I2 in communication with an encircling header I3 from which a plurality of the spindles I0 project in opposite directions, such as shown in United States Patent No. 2,218,310.

For mounting the yarn packages `9 on the of the perforated tube I4 upon which the yarn is wound, one form of the invention comprises a compressible bellows unit I5which is open at one end, to lit over the projecting threaded end I6 of the spindle I0, and is accurately dimensioned to seat upon the end of the package tube I4 and form a yleak-proof joint therewith. As shown in Fig. 2, the unit I5 has an internally threaded head I 'I which when screwed upon the spindle end I6 (places the unit I5 under such compression as will effectually seal the joints exposed to the treating liquid.

In the modification shown in Fig. 3, the spindle I8 terminates in a head I3 having two oppositely disposed slotsV for respectively receiving two laterally located pins 2l provided upon the inner periphery of the closed head 22 of the unit I5, thereby forming a bayonet joint. Thus, by telescoping the unit I5 over the head I8, the pins 2l will traverse the slots 20 until below the head I8 when a partial turn of the `unit will bring the pins 2| beneath the head I8 and hold the unit compressed but free to expand,

should the spindle elongate under the heat of the treating medium, so that joint with the package tube still remains sealed at its upper end.

Where more than one yarn package is carried by a single spindle, as shown in Fig. 1, one form of the invention comprehends the use of a bellows unit 23, oi the tubular corrugated ex-y pansible type, having tube-receiving seats at opposite ends, is interposed between the juxtaposed ends of the perforated tubes I4, while aV second unit ofthe kind shown in Fig. 2 or Fig. 3 is attached to the free end of the spindle. Thus, the differential expansion of the spindle withk respect to the package tubes is automatically taken up by the two units I5 and 23 and opening up of the end joints of the tubes prevented.

In the form of the invention shown in Figs. 7 and 8, a compensating assembly is shown comprising an elongated nut 24, threaded on the end of the spindle I8, having a flange 25 at its outer end. serving as an abutment for one end of a coil spring 26. The other end of the spring 26 seats uponan internal annular ledge2'I formed as a part of a cap housing 28, the closed end of which comprises a cover 38 crimped into place after the .parts are nested together. housing 28 has the contour of a hexagon nut for engagement by a wrench or othertool for threading the nut 24 on the spindle I8. Such turning movement is transmitted to diametrically and longitudinally disposed grooves 3l on the inner periphery of the housing 28 to respectively receive two tongues 32 projecting laterally from the flange 25. The ledge 21 is spaced from the open end of the housing 28 and forms with the outwardly ilared skirt of the housing a seat to receive the end of the package tube I4.

In assembling the unit upon a spindle I8 the housing 28 is seated upon the end of the packageV tube I4 with the nut 24 engaging the threaded end of the spindle I0, whereupon by turning the housing 28 the nut 24 feeds outwardly along the spindle to `place the spring 26 under compression to the extent necessary to compensate for the full anticipated expansion of the spindle I0 under operating conditions. rihus, as expansion occurs, the nut 24 can move linearly with it but since the spring 26 is held under compression against the ledge 21, the housing 28 remains sealed about the end of the package tube I4.

In Figures 9 and 10, a modiiied form of the invention is shown as a spacing unit between the juxtaposed ends of two alined package tubes I4, this unit comprising'a cylindrical sleeve 33 having a diameter to fit about the outer periphery of the tubes I4 and having a length to overlap and seal the space between the two tubes. As a means for maintaining the seal when the spindle eX- pands or for other reasons, a collar 34 of rubber or other resilient material is vulcanized within the sleeve 33, and has ka length less than the t As shown, the

length of the sleeve and a thickness such as to be compressed between the opposed ends of the tubes I4. Thus, should one package tube move away from the other due to pressure, turbulence or expansion, the elasticity ofthe collar 34 will prevent opening of either joint of the tube I4.

In the form of the invention shown in Figs. 11 and 12ga modied'form of spacer unit for use between two alined tubes I4 is shown, comprising a coiled flat spring 35 molded or vulcanizedswithin a cylinder 36 of rubber or other resilient 'material The length of the cylinder 36 is such as to close and seal the space between thev opposed ends of two tubes I4, when compressed by thedrawing together of the tubes during the mounting of the tubes upon the spindle III. Any movement thereafter tending to draw the tubes apart Will permit the elasticity of the spring and cylinder to maintain the desired sealed condition.

Whilel in the foregoing emphasis has been placed upon the expansion of the spindle under heat as the cause of backing oi of the closure nut, thisqmay also ,be caused by the turbulence of the flow of liquid or air as it circulates through the perforated tube of the'yarn package. Thus, WhetherA the tendency to break the seal of the spindle nutis causedvbyl vibration, pressure, or heat, the automatic'expansion unit functions to prevent this tendency becoming effective.

It will now be apparent that an eiiicient seal has been devised for the ends of the package yarn tubes when mounted upon spindles which are subject to expansion under heat of the treating medium. This leak-preventing means is effective whether the yarn packages are being dyed or dried so that the operator no longer has to be continually adjusting' partsV to seal off leaking tubes. As a result, treating operations are reduced to a minimum time interval, waste is obviated, and in the case of dyeing, more uniformity is obtained. While an expansible unit of the bellows type is here shownv by way of example, the invention is not so limited but comprehends broadly a closure for the package tube ends which 'is capable of expanding throughout the possible range of spindle expansion under the heat of the treating medium.

I'claim:l y

l. A mounting for yarn packages wound upon a'perforated tube; comprising a spindle arranged to pass axially within said tube, and expansible means open at one end to 'lt over an end of said tube and attached at the other end to an end of said spindle to be normally under compression to seal said end of said tube, said means being maintainedunder said compression throughout the expansion range of said spindle, whereby said sealing u means functions to prevent vleakage through'y the end of said tube incident to spindle expansion.

2. A mounting for yarn packages wound upon a perforated tube, comprising a spindle arranged to pass axially within said tube, and a bellows unit open at one end to fit over an end of said tube and attached at the other end to an end of said spindle to ybe normally under compression to seal said end ofsaid tube, said unit being maintained under compression throughout the expansion range of said spindle, whereby said unit prevents leakage through the end of said tube incident to spindle expansion.

3. A mounting for yarn packages wound upon a perforated tube, comprising a spindle arranged t0 pass axially within said tube, a bellows unit throughout the expansion range of said spindle whereby leakage through the end of said tube is prevented when said spindle expands.

4. A mounting for yarn packages wound upon a perforated tube, comprising a spindle arranged to pass axially within said tube, a bellows unit open at one end to seat over the end of said tube, and bayonet joint means to attach the opposite end of said unitto said spindle to place said unit under compression and maintain said compression throughout the expansion range of said spindle, whereby leakage through the end of said tube is ipreventedwhen said spindle expands.

5. A mounting for yarn packages wound upon a perforated tube, comprising a spindle arranged to pass axially within said tube, a closure of expansible material for an end of said tube, said closure encircling said spindle, and means carried 6 by said spindle for compressing said closure to a degree to maintain said compression throughout the expansion range of said spindle, whereby leakage around the end of the tube is prevented regardless of any relative movement between said spindle and said tube.

HUGO F.' LIEDTKE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,750,320 Dunlap Oct. 1, 1929 2,024,964 Carnie Dec. 17, 1935 2,062,648 Geider Dec. 1, 1936 2,321,546 Fryer June 8, 1943 FOREIGN PATENTS Number Country Date 5,373 Great Britain of 1910 

